Fastener



FIG. 1 is an isometric view of the new fastener;

FIG. 2 is a front view of the new fastener;

FIG. 3 is a rear view of the new fastener;

FIG. 4 is a left side view of the new fastener;

FIG. 5 is a ride side view of the new fastener;

FIG. 6 is a top view of the new fastener; and,

FIG. 7 is a bottom view of the new fastener. 

CLAIM The ornamental design for a fastener, as shown and described. 